code: def test_touserverifykey_partitionkey() -> None:
      random_verify_key = SyftSigningKey.generate().verify_key
  
      assert ToUserVerifyKeyPartitionKey.type_ == SyftVerifyKey
      assert ToUserVerifyKeyPartitionKey.key == "to_user_verify_key"
  
      result = ToUserVerifyKeyPartitionKey.with_obj(random_verify_key)
  
      assert result.type_ == SyftVerifyKey
      assert result.key == "to_user_verify_key"
      assert result.value == random_verify_key
  
      signing_key = SyftSigningKey.from_string(test_signing_key_string)
      with pytest.raises(AttributeError):
          ToUserVerifyKeyPartitionKey.with_obj(signing_key)
  
imports: import pytest
  from pytest import MonkeyPatch
  from result import Err
  from syft.node.credentials import SyftSigningKey
  from syft.node.credentials import SyftVerifyKey
  from syft.service.notification.notification_stash import OrderByCreatedAtTimeStampPartitionKey
  from syft.service.notification.notification_stash import FromUserVerifyKeyPartitionKey
  from syft.service.notification.notification_stash import NotificationStash
  from syft.service.notification.notification_stash import StatusPartitionKey
  from syft.service.notification.notification_stash import ToUserVerifyKeyPartitionKey
  from syft.service.notification.notifications import Notification
  from syft.service.notification.notifications import NotificationExpiryStatus
  from syft.service.notification.notifications import NotificationStatus
  from syft.types.datetime import DateTime
  from syft.types.uid import UID
label_desc: Use image node_id 3 for calling a global function with example usage: test_touserverifykey_partitionkey() without return types